Vue 管理框架自适应布局源码、一步到位。

<template>
  <div class="app-container">
    <div class="left" :style="{ width: leftWidth + 'px' }">
      <div class="right-center-left">
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      </div>
    </div>
    <div class="divider" @mousedown="startDragging"></div>
    <div class="right">
      <div v-if="showDiv1" class="div1">查询条件</div>
      <div class="div2">
        <button @click="toggleDiv1">操作按钮 div1</button>
      </div>
      <div class="div3" :style="{ height: div3Height + 'px' }">
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      </div>
      <div class="div4">分页</div>
    </div>
  </div>
</template>

<script>
export default {
  name: "AppContainer",
  data() {
    return {
      isDragging: false,
      leftWidth: 200,
      showDiv1: true
    };
  },
  computed: {
    div3Height() {
      const totalHeight = window.innerHeight;
      const div2Height = 30;
      const div4Height = 30;
      const div1Height = this.showDiv1 ? 100 : 0;

      // 计算 div3 的高度
      return totalHeight - div2Height - div4Height - div1Height;
    }
  },
  methods: {
    startDragging(e) {
      this.isDragging = true;
      document.addEventListener("mousemove", this.onDrag);
      document.addEventListener("mouseup", this.stopDragging);
    },
    onDrag(e) {
      if (this.isDragging) {
        const minWidth = 50;
        const maxWidth = window.innerWidth - 50;
        const newLeftWidth = e.clientX;

        if (newLeftWidth > minWidth && newLeftWidth < maxWidth) {
          this.leftWidth = newLeftWidth;
        }
      }
    },
    stopDragging() {
      this.isDragging = false;
      document.removeEventListener("mousemove", this.onDrag);
      document.removeEventListener("mouseup", this.stopDragging);
    },
    toggleDiv1() {
      this.showDiv1 = !this.showDiv1;
    }
  }
};
</script>

<style scoped>
.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.left {
  overflow-x: auto;
  overflow-y: auto;
  white-space: nowrap;
  min-width: 90px;
}

.divider {
  width: 5px;
  cursor: ew-resize;
  background-color: #ccc;
}

.right {
  display: flex;
  flex-direction: column;
  height: 100%;
  flex: 1; /* 自动填满剩余宽度 */
}

.div1 {
  height: 100px;
  background-color: #f0f0f0;
}

.div2 {
  height: 30px;
  background-color: #ddd;
}

.div3 {
  overflow-x: auto; /* 添加横向滚动条 */
  overflow-y: auto; /* 添加纵向滚动条 */
  background-color: #f5f5f5;
}

.div4 {
  height: 200px;
  background-color: #ccc;
}
</style>